exit-criterion-falsifier

exit-criterion-falsifier is an agent for Claude Code from dbc-oduffy/coordinator-claude. It costs 22 tokens per session (1,806 once invoked), scanned C, original, no licence file.

A reviewer that creates and runs a basic test of a plan's main completion condition. It sees the condition and the code repository, but not the detailed acceptance criteria or plan sections.

In plain words
What is it for?
Use it to challenge a plan's primary exit criterion with a falsification test.
Why use it?
It tests whether the plan's central condition can actually be shown to be true.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter.

Part of the coordinator plugin — 44 skills, 18 commands, 52 agents, 13 hooks shipped together

Good fit Use it to challenge a plan's primary exit criterion with a falsification test.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/dbc-oduffy/coordinator-claude/exit-criterion-falsifier
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/dbc-oduffy/coordinator-claude

Made for: Claude Code.

Or install coordinator, the plugin that ships this one along with the rest of its 44 skills, 18 commands, 52 agents, 13 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for exit-criterion-falsifier

README.md
[![agentmods](https://agentmods.dev/badge/agents/dbc-oduffy/coordinator-claude/exit-criterion-falsifier/github.svg)](https://agentmods.dev/agents/dbc-oduffy/coordinator-claude/exit-criterion-falsifier)
Your own site
<a href="https://agentmods.dev/agents/dbc-oduffy/coordinator-claude/exit-criterion-falsifier"><img src="https://agentmods.dev/badge/agents/dbc-oduffy/coordinator-claude/exit-criterion-falsifier/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for exit-criterion-falsifier

Your own site · 80×15
<a href="https://agentmods.dev/agents/dbc-oduffy/coordinator-claude/exit-criterion-falsifier"><img src="https://agentmods.dev/badge/agents/dbc-oduffy/coordinator-claude/exit-criterion-falsifier.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,806 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00022 $0.01806
Opus 5.5 $0.00009 $0.00722
Sonnet 5.5 $0.00004 $0.00361
Haiku 4.5 $0.00002 $0.00181

Measured 24d ago against content hash a25a68621c2e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

exit-criterion-falsifier scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 24d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

<!-- No `Grep`/`Glob` here by scope, not by absence — both exist in this build. This agent authors and runs one falsifier against a named criterion; content search is via `grep`/`Select-String` through Bash/PowerShell, f
agents/exit-criterion-falsifier.md · 165 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 24d ago Changed · -29 lines · -16 tokens per session a25a68621c2e
  2. 28d ago Changed · -14 tokens per session d711ffb40452
  3. 1mo ago Changed · +13 lines 23719992fb09
  4. 1mo ago Changed dc39263bf250
  5. 1mo ago First seen · 181 lines · 52 tokens per session scan C fea08140eadd

Subscribe to this mod's changes

exit-criterion-falsifier is an agent published in the GitHub repository dbc-oduffy/coordinator-claude (6 stars, last pushed 3d ago), with no licence file. It adds 22 tokens to every session and 1,806 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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